Answers

Subtract 56/81 from 2/18

2/18 - 56/81 is -47/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 18 × 9 = 162,
   2/18 = 2 × 9/18 × 9 = 18/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   56/81 = 56 × 2/81 × 2 = 112/162
4. Subtract the two like fractions:
   18/162 - 112/162 = 18 - 112/162 = -94/162
5. After reducing the fraction, the answer is -47/81

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